A critical debate in climate-change physics
IPCC Theory (1) says human carbon emissions cause all the CO2 increase since 1750.
Andrews (U of Montana physics professor) says Theory (1) is true.
Berry says Theory (1) is false.
See all SCC papers here: Science of climate change
Press down arrow to download PDF
Andrews (2023a) debate
Berry (2023a) debate
Steven Koonin’s book, Unsettled, – while otherwise excellent – makes this physics error on page 68. Here are the quotes from Unsettled:
“The simple fact that carbon dioxide lasts a long time in the atmosphere is a fundamental impediment to reducing human influences on the climate. Any emission adds to the concentration, which keeps increasing as long as emissions continue. In other words, CO2 is not like smog, which disappears a few days after you stop emissions; it takes centuries for the excess carbon dioxide to vanish from the atmosphere. So modest reductions in CO2 emissions would only slow the increase in concentration but not prevent it. Just to stabilize the CO2 concentration, and hence its warming influence, global emissions would have to vanish.
“Carbon dioxide is the single human-caused greenhouse gas with the largest influence on the climate. But it is of greatest concern also because it persists in the atmosphere/surface cycle for a very long time. About 60 percent of any CO2 emitted today will remain in the atmosphere twenty years from now, between 30 and 55 percent will still be there after a century, and between 15 and 30 percent will remain after one thousand years.”
See Berry (2021, 2023) to read the truth.
IPCC data show CO2 has Te = 3.5 years, or Th = 2.4 years